对于柯伊伯带探索的动机可能部分来自与人们终于认识到，我们对太阳系边缘这片寒冷黑暗的区域实在知之甚少。
Part of the motivation for exploring the Kuiper Belt was the recognition of just how little we know about this cold, dark region at the fringe of our solar system.
除了探索戏剧可能的起源，学者们还从理论上探讨了人们发展戏剧的动机。
In addition to exploring the possible antecedents of theater, scholars have also theorized about the motives that led people to develop theater.
反思的动机方面似乎有许多问题尚未被探索——例如，与教师可能进行的习惯性反思相对的，受外部激励的反思的价值。
There appear to be many unexplored matters about the motivation to reflect—for example, the value of externally motivated reflection as opposed to that of teachers who might reflect by habit.
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